What is the PSI limit for a steam heating boiler?

The PSI limit for a steam heating boiler is 15 PSI. This limit is established based on safety and operational standards for various types of steam systems. In many jurisdictions, a steam heating boiler that operates at or below 15 PSI is classified as a low-pressure boiler. This designation is critical because it determines the regulatory requirements, maintenance protocols, and safety measures that need to be followed.

Operating a steam boiler above this pressure threshold typically requires additional certifications, compliance with stricter regulations, and may necessitate different design and equipment specifications aimed at enhancing safety. Steam boilers designed to operate at these higher pressures undergo more rigorous inspections and maintenance procedures due to the increased risks associated with higher pressure systems. Therefore, knowing the 15 PSI limit is essential for ensuring both compliance with regulatory frameworks and the safe operation of steam heating systems.